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Finding the Fourth Proportional to 655,220.60, 982,783.47 and 206,069.93

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Solution

The fourth proportional to 655,220.60, 982,783.47 and 206,069.93 is: 309,089.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,220.60 : 982,783.47 = 206,069.93 : x
  2. Step 2: Convert to fraction form
    655,220.60/982,783.47 = 206,069.93/x
  3. Step 3: Cross multiply
    655,220.60x = 982,783.47 × 206,069.93
  4. Step 4: Simplify right side
    655,220.60x = 202,522,120,868.06
  5. Step 5: Solve for x
    x = 202,522,120,868.06/655,220.60
  6. Step 6: Final answer
    x = 309,089.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.